Apparatus

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sensors Mode-S transponder

AB4B11

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N827CC · ROBINSON R-66 · operated by HAWAII PACIFIC AVIATION INC

Hex
AB4B11
Octal
52645421
Decimal
11,225,873
Country
US
Tail
N827CC
Type
R66
No current signal · last broadcast Jul 23, 02:45 UTC
Flights observed
19
Distinct callsigns
1
Country
US
Last broadcast
Jul 23, 02:45 UTC

Last known position

Most recent position reported by Mode-S AB4B11.

Country allocation

The ICAO 24-bit address AB4B11 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N827CC - 19 2026-07-23

Recent flights last 19

DateFlightRouteTakeoffLandingDuration
2026-07-23 N827CC KOA → KOA Jul 23, 02:20 UTCJul 23, 02:45 UTC25m
2026-07-23 N827CC - Jul 23, 01:30 UTCJul 23, 01:45 UTC15m
2026-07-21 N827CC KOA → KOA Jul 21, 17:30 UTCJul 21, 18:30 UTC1h 0m
2026-07-20 N827CC - Jul 20, 20:50 UTCJul 20, 21:05 UTC15m
2026-07-19 N827CC KOA → KOA Jul 19, 20:30 UTCJul 19, 21:30 UTC1h 0m
2026-07-19 N827CC - Jul 19, 19:20 UTCJul 19, 19:30 UTC10m
2026-07-19 N827CC - Jul 19, 18:15 UTCJul 19, 18:25 UTC10m
2026-07-18 N827CC KOA → KOA Jul 18, 17:45 UTCJul 18, 18:40 UTC55m
2026-07-08 N827CC - Jul 8, 22:25 UTCJul 8, 22:35 UTC10m
2026-07-08 N827CC - Jul 8, 20:30 UTCJul 8, 20:50 UTC20m
2026-07-08 N827CC - Jul 8, 19:30 UTCJul 8, 19:40 UTC10m
2026-07-08 N827CC - Jul 8, 18:40 UTCJul 8, 18:50 UTC10m
2026-07-07 N827CC - Jul 7, 19:25 UTCJul 7, 20:10 UTC45m
2026-07-07 N827CC - Jul 7, 18:25 UTCJul 7, 18:45 UTC20m
2026-07-01 N827CC KOA → KOA Jul 1, 19:55 UTCJul 1, 20:05 UTC10m
2026-07-01 N827CC - Jul 1, 18:20 UTCJul 1, 19:25 UTC1h 5m
2026-06-30 N827CC KOA → KOA Jun 30, 20:05 UTCJun 30, 20:30 UTC25m
2026-06-30 N827CC - Jun 30, 18:25 UTCJun 30, 18:45 UTC20m
2026-06-30 N827CC KOA → KOA Jun 30, 02:55 UTCJun 30, 03:05 UTC10m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N827CC page for operator, model, and routing details .

Mode-S AB4B11 frequently asked

What is Mode-S code AB4B11?
AB4B11 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N827CC.
Where is Mode-S AB4B11 registered?
Mode-S code AB4B11 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AB4B11 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 02:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB4B11, octal 52645421, decimal 11,225,873.
What flights does AB4B11 operate?
Mode-S AB4B11 has broadcast 1 distinct callsign, including N827CC.